Accession Number : ADA226072

Title :   Hypersonic Viscous Flow.

Descriptive Note : Final rept. 1 Mar 88-31 May 90,

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : Cheng, Hsien K.

Report Date : 26 JUL 1990

Pagination or Media Count : 5

Abstract : Research and documented works on Viscous hypersonic flow theory are summarized and reported. Topic areas where the research has been focused are:(1) a fully viscous version of the shock layer (VSL) and its extension beyond the Navier-Stokes (NS) level based on Grad's thirteen moment equations (2) INVISCID-VISCOUS iteration in hypersonic flows. The development in area 1 has led to a principle which allows correlation of shock layer flow far from translational equilibrium with a corresponding flow based on the NS equations, as substantiated by extensive comparison of direct simulation Monte Carlo and NS-based calculations. The development in area 2 resulted in a triple-deck theory of hypersonic boundary layer under strong wall cooling which exhibits drastically different structure and properties of the triple-deck. (edc)

Descriptors :   *HYPERSONIC FLOW, *VISCOUS FLOW, BOUNDARY LAYER FLOW, COOLING, EQUATIONS, INVISCID FLOW, ITERATIONS, LAYERS, MOMENTS, MONTE CARLO METHOD, NAVIER STOKES EQUATIONS, SHOCK, SIMULATION, THEORY, WALLS.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE